Hang in linux

Hi guys sorry for my English I am from GREECE and I speak from translator.I have in my school work to hang the program I've done is this
encounter the problems is that the meter that I have put on the mistakes does not work (I have not stated anywhere lathi = 0, not to reset the meter at each of the pickup loop) also </span>the following loops I made with a view when the user gives a character and is within the word, the character to appear in subsequent pickups of the loop. but neither seems to work.
{for(i=1;i<=mikos;i++)
{
if(xar [i]~/[A-Z] /)
{
ch[i]=xar[i];
}
}
};

                            \{for\(i=1;i&lt;=mikos;i\+\+\) 
                                    \{ 
                                    if\(ch [i]~/[A-Z] /\) 
                                            \{ 
                                            printf\("%s",ch[i]\); 
                                            \} 

                                    else 
                                            \{ 
                                            printf\("_ "\); 
                                            \} 

                                    \} 
                            \}; 

</span>thank you

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